利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

7 条记录 (耗时 0.008 秒)

    Signal conditioner
    1.
    发明公开
    Signal conditioner 失效
    Signalwandler。

    公开(公告)号：EP0010303A1

    公开(公告)日：1980-04-30

    申请号：EP79104034.8

    申请日：1979-10-18

    申请人： United Airlines, Inc.

    发明人： Gibson, James E.

    IPC分类号： G08C19/40 ,  G01D5/20

    CPC分类号： G01D5/2033 ,  G08C19/40

    摘要： There is described a signal conditioner circuit particularly useful in aircraft instrumentation applications for transforming the signals generated by a second harmonic, saturable core, angular transducer 10 into two direct current 1,2 signals containing information giving the angular position of the transducer which signals may be easily recorded and/or further processed to give a direct reading of angular position. The circuit includes two bandpass filters 92,/72 tuned to twice the frequency of the signal exciting the transducer with each coupled to a tap on the transducer winding. The outputs ofthe bandpass filters are detected by sampling them at times lagging the zero-crossings of the exciting signal by approxi- C mately 45 degrees.

    摘要翻译： 描述了在飞机仪表应用中特别有用的信号调节器电路，用于将由二次谐波，可饱和磁芯，角度换能器10产生的信号转换成包含给出换能器的角位置的信号的两个直流1,2信号，该信号可以是 容易地记录和/或进一步处理以给出角位置的直接读数。 该电路包括两个带通滤波器92，/ 72，其被调谐到激励换能器的信号频率的两倍，每个耦合到换能器绕组上的抽头。 带通滤波器的输出通过在将激励信号的过零点落后大约45度的时间进行采样来检测。

    A multipolar resolver
    3.
    发明公开
    A multipolar resolver 失效
    多极旋转变压器。

    公开(公告)号：EP0009102A1

    公开(公告)日：1980-04-02

    申请号：EP79102749.3

    申请日：1979-08-01

    申请人： Okuma Machinery Works Ltd.

    发明人： Toida, Ryuji ,  Sakai, Yuji ,  Ikegami, Mitsuru

    IPC分类号： G08C19/40 ,  H02K24/00 ,  G01D5/20

    CPC分类号： G01D5/2046 ,  G08C19/40 ,  H02K24/00

    摘要： A multipolar resolver having a substantially cylindrical rotor of magnetic material with A· n rotor poles (12, B 1 -B 10 ) provided equidistantly on the outer periphery thereof, a stator of magnetic material with B n stator poles (P 1 -P 8 ) provided equidistantly along the circumference concentric with the axis of said rotor, and a central coil (15) provided on said stator along substantially the same axis as said rotor axis.
    A, B and n are positive integers and the value of A differs from the value of B by one such that |A-B| = 1.
    In order to provide a multipolar resolver which requires no coils on the rotor and which permits an increase in the number of poles of the resolver without a corresponding increase in complexity and manufacturing cost, sine and cosine coils (16, S 1 -S 4 ; 17, C 1 -C 4 ) are wound alternately on circumferentially successive ones of the stator poles (P 2 , P 4 , P 6 , P e ; P 1 , P 3 , P 5 , P 7 ). Circumferentially successive ones of the sine coils (16, S 1 -S 4 ) are connected in series with each other and are wound in opposite directions of winding alternately and circumferentially successive ones of said cosine coils (17, C 1 -C 4 ) are connected in series with each other and wound in opposite directions of winding alternately.

    Gauge driving system
    6.
    发明公开
    Gauge driving system 失效
    安全系统安全系统。

    公开(公告)号：EP0274257A1

    公开(公告)日：1988-07-13

    申请号：EP87311108.2

    申请日：1987-12-17

    申请人： LUCAS INDUSTRIES public limited company

    发明人： Birch, Barry

    IPC分类号： G01P1/07 ,  G08C19/40

    CPC分类号： G08C19/40 ,  G01P1/08

    摘要： An air-core gauge comprising two coils (X, Y) has a driving system with switches (Sc, Sx, Sy) on the junction terminal (Tc) and end terminals (Tx, Ty) of the two coils, and a drive circuit (D) controlling the switches so that each terminal is selectively at ground or +V, with one terminal being connected alternately to the two signal levels (ground, +V) with variable duty cycle depending upon the angle through which the pointer of the gauge is to be turned. For any given angle, one terminal is held at ground, another at +V and the third is alternated with appropriate duty cycle. Any angle of pointer deflection from 0 - 360° can be achieved with just the two voltage levels (ground, +V) and calculating the duty cycle from an appropriate function of tan ϑ values for ϑ in the range 0 - 45°.

    摘要翻译： 包括两个线圈（X，Y）的空芯计具有在两个线圈的接线端子（Tc）和端子端子（Tx，Ty）上具有开关（Sc，Sx，Sy）的驱动系统，以及驱动电路 （D）控制开关使得每个端子选择性地接地或+ V，其中一个端子交替地连接到具有可变占空比的两个信号电平（地，+ V），这取决于测量表的指针的角度 要转身 对于任何给定的角度，一个端子保持在地面，另一端保持在+ V，第三个端子以适当的占空比交替。 只要两个电压电平（地，+ V）就可以实现0 - 360°任意角度的指针偏转，并从0 - 45°范围内的θ的tanθ值的适当函数计算占空比。